US6546251B1 - Method and arrangement for changing cells - Google Patents

Method and arrangement for changing cells Download PDF

Info

Publication number
US6546251B1
US6546251B1 US09/396,853 US39685399A US6546251B1 US 6546251 B1 US6546251 B1 US 6546251B1 US 39685399 A US39685399 A US 39685399A US 6546251 B1 US6546251 B1 US 6546251B1
Authority
US
United States
Prior art keywords
cell
service
message
psi
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/396,853
Other languages
English (en)
Inventor
Lars Dalsgaard
Antero Lundell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiwan Semiconductor Manufacturing Co TSMC Ltd
Original Assignee
Nokia Mobile Phones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Assigned to NOKIA MOBILE PHONES LTD. reassignment NOKIA MOBILE PHONES LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LUNDELL, ANTERO, DALSGAARD, LARS
Application granted granted Critical
Publication of US6546251B1 publication Critical patent/US6546251B1/en
Assigned to NOKIA CORPORATION reassignment NOKIA CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). Assignors: NOKIA MOBILE PHONES LTD.
Assigned to EASTMAN KODAK COMPANY reassignment EASTMAN KODAK COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOKIA CORPORATION (FORMERLY NOKIA MOBILE PHONES LTD.)
Assigned to CITICORP NORTH AMERICA, INC., AS AGENT reassignment CITICORP NORTH AMERICA, INC., AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASTMAN KODAK COMPANY, PAKON, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT PATENT SECURITY AGREEMENT Assignors: EASTMAN KODAK COMPANY, PAKON, INC.
Assigned to PAKON, INC., EASTMAN KODAK COMPANY reassignment PAKON, INC. RELEASE OF SECURITY INTEREST IN PATENTS Assignors: CITICORP NORTH AMERICA, INC., AS SENIOR DIP AGENT, WILMINGTON TRUST, NATIONAL ASSOCIATION, AS JUNIOR DIP AGENT
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN) Assignors: CREO MANUFACTURING AMERICA LLC, EASTMAN KODAK COMPANY, FAR EAST DEVELOPMENT LTD., FPC INC., KODAK (NEAR EAST), INC., KODAK AMERICAS, LTD., KODAK AVIATION LEASING LLC, KODAK IMAGING NETWORK, INC., KODAK PHILIPPINES, LTD., KODAK PORTUGUESA LIMITED, KODAK REALTY, INC., LASER-PACIFIC MEDIA CORPORATION, NPEC INC., PAKON, INC., QUALEX INC.
Assigned to BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT reassignment BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN) Assignors: CREO MANUFACTURING AMERICA LLC, EASTMAN KODAK COMPANY, FAR EAST DEVELOPMENT LTD., FPC INC., KODAK (NEAR EAST), INC., KODAK AMERICAS, LTD., KODAK AVIATION LEASING LLC, KODAK IMAGING NETWORK, INC., KODAK PHILIPPINES, LTD., KODAK PORTUGUESA LIMITED, KODAK REALTY, INC., LASER-PACIFIC MEDIA CORPORATION, NPEC INC., PAKON, INC., QUALEX INC.
Assigned to BANK OF AMERICA N.A., AS AGENT reassignment BANK OF AMERICA N.A., AS AGENT INTELLECTUAL PROPERTY SECURITY AGREEMENT (ABL) Assignors: CREO MANUFACTURING AMERICA LLC, EASTMAN KODAK COMPANY, FAR EAST DEVELOPMENT LTD., FPC INC., KODAK (NEAR EAST), INC., KODAK AMERICAS, LTD., KODAK AVIATION LEASING LLC, KODAK IMAGING NETWORK, INC., KODAK PHILIPPINES, LTD., KODAK PORTUGUESA LIMITED, KODAK REALTY, INC., LASER-PACIFIC MEDIA CORPORATION, NPEC INC., PAKON, INC., QUALEX INC.
Assigned to EASTMAN KODAK COMPANY reassignment EASTMAN KODAK COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JPMORGAN CHASE BANK, N.A.
Assigned to EASTMAN KODAK COMPANY reassignment EASTMAN KODAK COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BARCLAYS BANK PLC
Assigned to EASTMAN KODAK COMPANY reassignment EASTMAN KODAK COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. reassignment TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASTMAN KODAK COMPANY
Assigned to KODAK (NEAR EAST), INC., PAKON, INC., EASTMAN KODAK COMPANY, KODAK AVIATION LEASING LLC, LASER PACIFIC MEDIA CORPORATION, FPC, INC., NPEC, INC., FAR EAST DEVELOPMENT LTD., CREO MANUFACTURING AMERICA LLC, QUALEX, INC., KODAK PHILIPPINES, LTD., KODAK PORTUGUESA LIMITED, KODAK REALTY, INC., KODAK IMAGING NETWORK, INC., KODAK AMERICAS, LTD. reassignment KODAK (NEAR EAST), INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Assigned to EASTMAN KODAK COMPANY, KODAK REALTY, INC., QUALEX, INC., LASER PACIFIC MEDIA CORPORATION, KODAK AVIATION LEASING LLC, KODAK PHILIPPINES, LTD., KODAK PORTUGUESA LIMITED, KODAK IMAGING NETWORK, INC., KODAK (NEAR EAST), INC., PAKON, INC., CREO MANUFACTURING AMERICA LLC, PFC, INC., KODAK AMERICAS, LTD., NPEC, INC., FAR EAST DEVELOPMENT LTD. reassignment EASTMAN KODAK COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Anticipated expiration legal-status Critical
Assigned to EASTMAN KODAK COMPANY, FPC INC., KODAK PHILIPPINES LTD., QUALEX INC., KODAK AMERICAS LTD., KODAK REALTY INC., KODAK (NEAR EAST) INC., LASER PACIFIC MEDIA CORPORATION, FAR EAST DEVELOPMENT LTD., NPEC INC. reassignment EASTMAN KODAK COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BARCLAYS BANK PLC
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the invention relates to an improved method and arrangement for cell reselection by a mobile station in a cellular radio system.
  • the invention relates to cell reselection in a situation where the mobile station is attached to a special service such as the General Packet Radio Service (GPRS), for example, offered by the current cell.
  • GPRS General Packet Radio Service
  • FIG. 1 shows the basic structure of digital cellular systems.
  • a mobile communications network comprises at least one core network CN and one or more radio access networks RAN.
  • the core networks CN consist of various central systems which may offer various intelligent network services in addition to versatile communications possibilities.
  • a core network comprises mobile services switching centers MSC, other network elements (which in the GSM include the serving GPRS support node, SGSN, and gateway GPRS support node, GGSN, for example), and the associated transmission systems.
  • the radio access networks are located between the core network and mobile stations.
  • a radio access network comprises base transceiver stations BTS and a radio network controller RNC. Each base station BS has a fixed connection to the radio network controller RNC.
  • the radio network controllers in turn have fixed connections to at least one core network node. Between the mobile stations MS and core networks CN there may operate one or more radio access networks, and through a given radio access network a mobile station MS can be connected with several core networks CN.
  • FIG. 2 shows the coverage areas of services offered by a cellular system.
  • Area 20 shows the coverage of basic GSM services, and areas 21 , 28 and 29 are GPRS coverage areas within area 20 .
  • area 21 may be the center of a city, area 28 may be e.g. an airport, and area 29 may be a research and development or other office complex where GPRS service is needed.
  • FIG. 3 shows in more detail the GPRS base stations 23 , 24 , 25 and 26 and their coverage areas 23 a , 24 a , 25 a and 26 a in a city center 21 .
  • FIG. 3 does not show the basic-service GSM base stations the coverage areas of which are within area 21 .
  • FIG. 3 shows that even an area that offers GPRS services may have locations, here location 27 , which are not within the coverage area of any GPRS base station. In such a location a mobile station has to connect to a base station which only offers the basic GSM service.
  • FIG. 3 shows in more detail the GPRS base stations 23 , 24 , 25 and 26 and their coverage areas 23 a , 24 a , 25 a and 26 a in a city center 21 .
  • FIG. 3 does not show the basic-service GSM base stations the coverage areas of which are within area 21 .
  • FIG. 3 shows that even an area that offers GPRS services may have locations, here location 27 , which are not within the
  • a mobile station in a cellular radio system always tries to choose a base station coverage area to camp on such that the quality of the radio connection is adequate.
  • the cell selection has been based on the measurement of the received radio signal level either at the mobile station or at the base station
  • BCCH broadcast control channel
  • Mobile stations measure the strengths of the BCCH signals they receive and decide on the basis of the measurements which cell is the most advantageous from the radio connection quality perspective.
  • Base stations also inform mobile stations about the BCCH frequencies used in the neighbouring cells so that the mobile stations will know what frequencies they have to listen to in order to find the BCCH transmissions of the neighbouring cells.
  • the BCCH channel transmission also includes information about how the mobile stations can make so-called random access requests in that particular cell in order to set up a connection.
  • FIG. 4 shows the GSM broadcast frequency channels in a so-called 51 multiframe.
  • the frequency correction channel FCCH synchronization channel SCH
  • the common control channel CCCH the frequency correction channel FCCH, synchronization channel SCH, and the common control channel CCCH.
  • FIGS. 5 a , 5 b and 5 c depict the GPRS 51 and 52 multiframe structures.
  • the GSM BCCH and CCCH channels are replaced by their GPRS counterparts, namely the PBCCH and PCCCH channels.
  • the FCCH and SCH channels are illustrated, even though they are not specified in the current GPRS specification.
  • the GPRS 52 multiframe structure no FCCH or SCH channels not shown, due to the fact that they are not specified in the 52 multiframe structure of the current specification.
  • PBCCH (PSI) only in one radio block per multiframe, while in the 52 multiframe structure shown in FIG.
  • PBCCH Packet Information type 3
  • PSI3bis Packet Information type 3bis
  • each base station includes in its BCCH signal the data required for connection requests.
  • each base station may regularly transmit at the ECCH frequency so-called system information (SI) messages. These messages contain information about the ability of the base station to provide advanced services, especially GPRS network service.
  • SI system information
  • a mobile station camped on a cell that offers basic GSM service needs to change to another cell, it listens to the neighbouring cells' BCCH channels and receives SI messages from these. On behalf of this information the mobile station can determine whether a cell supports GPRS service or not, and if it does, the mobile station can start operating on the GPRS channel immediately. For example, an idling mobile station can at regular intervals update its information about the neighbouring cells' characteristics by receiving SI messages so that the information can be quickly retrieved from the mobile station's memory at the moment of possible cell reselection.
  • FIG. 6 shows the prior-art process that takes place when a mobile station already in the GPRS service needs to change serving cell.
  • the mobile station has already received a neighbour cell list from the serving base station. This list is used in order to continuously examine whether or not there is a need to change the serving cell, phase 60 . If the mobile station finds that cell reselection is necessary, it tunes to the neighbour cell and starts receiving the system information of the BCCH of the chosen cell, phase 61 . On the basis of these data the mobile station makes a preliminary selection of the cell and examines that the cell can offer a minimum of necessary service, phase 62 . When the mobile station has chosen a suitable cell to get service from, the mobile station starts receiving the necessary SI or PSI from this cell in order to obtain GPRS service, phase 63 . The chosen cell may or may not offer GPRS service.
  • a disadvantage of the method described above is that it is not sensible, as regards power consumption and communications resources, for the mobile station, while camped on a GPRS cell, to receive basic-GSM SI messages, but in practice the mobile station starts receiving SI messages only after the cell reselection procedure has started. Thus the mobile station does not keep an up-to-date list of the neighbour cell characteristics.
  • the arrangement described above puts a load on the mobile station connected with the GPRS service because the mobile station camped on a cell first has to read from the signal sent by the base station of the cell a list of the other BCCH frequencies and then receive, demodulate and decode a short period of the BCCH transmission arriving at each of the frequencies mentioned in the list in order to find out whether the neighbour cells can provide GPRS network service.
  • GSM SI messages may take nearly 10 seconds, which usually is too long a delay in cell reselection, especially if the mobile station is moving fast. Consequently, the mobile station uses more power, data communications slows down and the connection with the base station may be temporarily cut off.
  • An object of this invention is to provide a method and arrangement in which the use of communications resources to find a new suitable cell is more efficient than in prior-art methods and arrangements.
  • the serving base station sends to the mobile station the information about whether the base station in a neighbour cell provides a given service.
  • This information is preferably sent in a signalling message on a channel of a given service, such as GPRS, to which the mobile station is connected.
  • the cell reselection is then preferably performed directly at the level of the determined service.
  • the “determined service” means here most preferably a service other than the lowest, basic service level of the communication system.
  • the information about whether a neighbour cell's base station is offering GPRS or not is advantageously sent in a PSI 3 message on a GPRS packet channel.
  • the invention can be realized in the GPRS system by adding to the packet channel's PSI 3 message a one-bit information element for each neighbour cell which indicates whether the neighbour cell in question supports the GPRS service. If the mobile station is not connected to a special service such as the GPRS, the information can be sent in the basic system's information message, such as SI 3 .
  • the invention makes it possible for a mobile station connected to a given service to perform a direct change between the serving base station and another base station that offers the same service, without having to resort to lower-level system signalling. So, a mobile station connected to GPRS, for example, need not receive system information messages transmitted by the neighbour cells on the basic GSM channels in conjunction with cell reselection but it can select the new GPRS-supporting cell directly at GPRS level.
  • a base station sends information about the service levels of the neighbouring base stations in signalling messages of the current service so that in order to find a new cell the mobile station receives, demodulates and decodes only the transmissions of those neighbouring base stations which transmit a strong enough signal and which according to the information sent by the current base station can offer the current service level.
  • the mobile station may maintain various lists of such neighbouring base stations into whose cells it may move in the near future.
  • the invention helps adjust cell reselection such that the load on the mobile station and radio signalling, caused by measurement of possible new cells and reception of messages, is as small as possible.
  • a mobile station can as quickly as possible select from among available cells a new cell which best meets the communications needs of the mobile station.
  • Cell reselection may be performed while the mobile station is in the so-called idle state, in which there is no active data connection between the mobile station and a base station, or it may be performed during an active data connection.
  • the method according to the invention for selecting a new serving cell in a cellular radio system where a determined service level is required in the new cell including a phase of transmitting information about neighbouring cells from a base station of a cellular radio system to a mobile station, wherein the base station generates a message containing information about the neighbouring cells and sends the message to the mobile station, is characterized in that the base station includes in said message information about whether the neighbour cell mentioned in the message offers the determined service to mobile stations and the cell reselection is performed directly at the level of the determined service.
  • the method according to the invention for realizing cell reselection in a cellular radio system which comprises base stations with associated cells as well as mobile stations, is characterized in that it comprises phases in which
  • a mobile station links up with a service offered by the system
  • a base station sends to the mobile station a signalling message in accordance with a determined service, containing information about neighbour cells located near to the base station as well as information about whether said neighbour cells provide a determined service,
  • the mobile station preliminarily selects a group of new cells offering a determined service
  • the mobile station performs measurements among the preliminarily selected cells in order to find a suitable new cell, whereby
  • the mobile station selects a new cell from among the preliminarily selected cells, and
  • the mobile station selects a new cell from among cells other than the preliminarily selected cells, and
  • the cell reselection is performed directly at the level of the determined service.
  • the invention is also directed to a method for transmitting information about neighbouring cells from a base station of a cellular radio system to a mobile station, wherein the base station generates a message containing information about the neighbouring cells and sends the message to the mobile station, and which is characterized in that the base station includes in said message information about the service level offered to mobile stations by the neighbour cell mentioned in the message and that said signalling message includes at least one of the following pieces of information:
  • control channel synchronization information location of control channel synchronization information.
  • the invention is also directed to a base station and mobile station of a cellular radio system.
  • the base station comprising means for offering a determined service and means for generating signalling messages and means for transmitting them to mobile stations, is characterized in that
  • the cell selection is perform the cell reselection directly at the level of the determined service.
  • the cellular mobile station according to the invention equipped with means for connecting to a determined service, and comprising means for receiving signalling messages from base stations as well as means for performing cell-specific measurements to find a suitable cell for the purpose of cell reselection, is characterized in that it is equipped so as to indicate information about the service level of a neighbour cell based on signalling messages transmitted by the current serving base station, and to perform cell reselection on the basis of said information directly at the level of the determined service.
  • the invention is further directed to a cellular radio system, which comprises base stations and, in association with them, cells, as well as mobile stations and in which
  • the base stations are equipped so as to generate messages and send them to mobile stations in the form of signalling messages, and
  • the mobile stations are equipped so as to operate at a determined service level and receive signalling messages from base stations, and which is characterized in that it contains information accessible by a base station about a group of neighbour cells in the vicinity of the cell of the base station, including information about the service level offered in and by said neighbour cells to mobile stations, the system in question being arranged so as to transmit said information from the base station to a mobile station in a signalling message for the purpose of selecting a new serving cell to perform the cell reselection directly at the level of the determined service.
  • FIG. 1 shows a cellular radio system according to the prior art
  • FIG. 2 shows coverage areas in a cellular radio system
  • FIG. 3 shows cells in an area offering a certain service
  • FIG. 4 shows a GSM 51 multiframe
  • FIG. 5 a shows a GPRS 51 multiframe
  • FIG. 5 b shows a GPRS 52 multiframe with PBCCH in one radio block
  • FIG. 5 c shows a GPRS 52 multiframe with PBCCH in four radio blocks
  • FIG. 6 shows a flowchart of a prior-art method for changing serving cells
  • FIG. 7 shows a flowchart of a method according to the invention for chancing serving cells
  • FIG. 8 shows a cellular mobile station according to the invention and its connection to a cellular radio system.
  • FIGS. 1 to 6 above in conjunction with the description of the prior art reference was made to FIGS. 1 to 6 , so below in the description of the invention and its preferred embodiments reference will be made mainly to FIGS. 7 and 8.
  • FIG. 7 shows a flowchart of a method according to the invention for changing the serving cell.
  • a mobile station finds out if there is need to change the serving cell and receives PSI 3 messages from the packet broadcast control channel PBCCH or packet associated control channel PACCH of the current base station in phase 70 .
  • a PSI 3 message contains a list of neighbour cells and information about whether each particular cell supports the current service level, such as the GPRS network service.
  • the information about whether a neighbouring base station supports the current GPRS service is transmitted in the PSI 3 message preferably in the form of a one-bit field per each neighbouring base station. In that case, value 0 for the bit could mean that the base station does not support the GPRS service and value 1 could mean that the base station supports the GPRS service.
  • the information may also be transmitted in a lower service level system information (SI) message, say, in a SI 3 message, especially if the mobile station is not connected to the GPRS service.
  • SI system information
  • the mobile station may preliminarily select the cells that support the current service, phase 71 .
  • the selection of the group of cells in phase 71 may also be based on that the mobile station tries to find a neighbour cell which, according to a PSI message sent by the current base station, belongs to the same location area with the current base station or to the home location area of the mobile station or to a private picocell network, in which the operation is more advantageous to the user than on average.
  • the invention does not limit on what grounds the cells are discriminated in phase 71 , in addition to the information about whether a particular neighbour base station supports the current service level, in this case the GPRS service.
  • the mobile station selects a new cell from among the preliminarily selected cells on the basis of channel measurement data, among other things, in a known manner by measuring the power level of the signal received from the current base station and/or the error rate of the demodulated and decoded signal, and attempts to make the selected cell the new serving cell, phase 72 .
  • the mobile station in phase 72 the mobile station tries to find a new cell from among the neighbour cells which in phase 71 were found suitable on the basis of their service level and possible other criteria.
  • the new cell has to meet known suitability criteria, which e.g. in the GSM system mean high enough values of known cell-specific C 1 and C 2 parameters.
  • the suitability criteria and other known cell selection functions in the GSM and DCS 1800 systems are specified in European Broadcasting Union's (EBU) and European Telecommunications Standards Institute's (ETSI) standards ETS 300 535 (GSM 03.22) and ETS 300 578 (GSM 05.08).
  • EBU European Broadcasting Union's
  • ETSI European Telecommunications Standards Institute's
  • the mobile station need not start receiving lower service level signaling channels. If, however, it is not possible to select a cell offering the current service level, the mobile station starts in phase 73 looking for a suitable cell from among the cells discriminated in phase 71 . If the mobile station has time, it can look for a suitable cell from among the discriminated cells, in accordance with phase 73 , even if a suitable cell with a “better level” had been found in phase 72 . By looping continuously or regularly the loop formed by states 70 , 71 , 72 and 73 the mobile station can continuously maintain a list that indicates the best possible new cells.
  • a base station can advantageously include in PSI 3 messages information primarily about those neighbour cells that support the same service as the base station itself. If it is not necessary to include in every message the information of all neighbour cells, the length of the messages can be made shorter if desired.
  • Neighbour Cell parameters Neighbour Cell parameters struct>
  • Cell selection params Cell selection struct> ⁇ * ⁇ * 0 ;
  • Cell reselection params struct>field which according to the invention is added to the PSI 3 message in this case.
  • the contents of this field are e.g. as follows:
  • bit ( 10 )> ⁇ element may indicate where the control channel synchronization data can be found in case the FCCH and SCH channels are not in use.
  • Cell reselection params struct> field the PSI 3 message described above is in accordance with the prior art.
  • the described cell selection parameters can naturally be included in other System Information messages than described, such as SI 3 , SI 4 , SI 7 , SI 8 or SI 13 .
  • the transmission of the concerned System Infonnation message may depend on whether GPRS is supported or not.
  • the names of the bit fields may naturally be different from the ones described.
  • the information on whether a neighbouring cell supports a GPRS can be included in PSI 3 or PSI 3 bis message of the serving cell. This way the mobile station receives information—already before finishing the the actual cell reselection—whether the possible new cell supports supports GPRS or not. The mobile station utilize this information in the cell reselection process. In case
  • an ARFNC field (as described above) can be added. in the message.
  • the new cell supports GPRS and the PBCCH is mapped on a non-hopping carrier, and the mobile station can tune directly to the PBCCH of the new cell without a need to read the BCCH information of the new cell.
  • the mobile station can find this information from the SI 13 message of the new cell.
  • the MS needs additional information from the new cell in order to describe the hopping PBCCH. This information can be received from the SI 13 information element of the new cell.
  • the mobile station may, if necessary, tune to the new cell and read the SI 13 information element which includes information on the location of the PBCCH of the new cell. This can be performed already before the cell reselection is finished. This reading of SI 13 can be performed while the mobile station is still operating on the current serving cell. By doing this the mobile station can receive information on PBCCH of the new cells and act according to this information before actually tuning to the new cell (cases II and III above). This procedure will remove the necessity for the mobile station to read the whole set of SI messages on the BCCH of the new cell during the cell reselection, thereby reducing the actual cell reselection time.
  • GPRS e. GPRS_SUPPORTING_CELL bit
  • FIG. 8 shows a simplified block diagram of a mobile station 800 according to the invention and its connection to a cellular system.
  • the mobile station comprises an antenna 801 for receiving radio-frequency (RF) signals transmitted by base stations.
  • a received RF signal is directed by a switch 802 to a RF receiver 811 where the signal is amplified and converted digital.
  • the signal is then detected and demodulated in block 812 .
  • Block 813 performs decryption and deinterleaving.
  • Signal processing in block 830 Received data may be stored as such in the mobile station's memory 804 or, alternatively, the processed packet data are taken after the signal processing to a possibly external device such as a computer.
  • a control unit controls the above-mentioned reception blocks in accordance with a program stored in the unit.
  • Transmission from the mobile station is performed e.g. as follows. Controlled by the control block 803 , block 833 performs possible signal processing on the data and block 821 performs interleaving and encryption on the processed signal to be transmitted.
  • the encoded data are arranged in bursts, block 822 , which are modulated and amplified into a RF signal to be transmitted, block 823 .
  • the RF signal to be transmitted is lead to an antenna 801 by means of a switch 802 .
  • the processing and transmission functions described above are controlled by the control unit 803 .
  • the components that are essential from the invention's perspective include the known reception blocks 811 - 813 , by means of which the mobile station receives, demodulates and decodes the messages transmitted by base stations and measures the levels of the received signals, as well as the control block 803 which processes the information contained in the messages and controls the operation of the mobile station.
  • Part of the memory 804 of the mobile station has to be allocated to information regarding neighbour cell selection, said information including data received from base stations about the neighbour cells' PBCCH frequencies and service levels.
  • a detachable memory medium such as the known SIM card, may also be used for said purpose.
  • the mobile station uses the transmission blocks 821 - 823 to transmit the messages related to cell selection to base stations.
  • a base station 851 and/or base station controller 852 has access to a database (not shown) which includes information about the neighbour cells' PBCCH frequencies and service levels, such as the ability to offer GPRS service.
  • An operator usually has operation and maintenance (OM) capabilities for altering the contents of these databases statically (e.g. when a new base station starts operation in the vicinity of existing base stations) or dynamically (e.g. when a nearby base station is driven down for service).
  • OM operation and maintenance
  • Prior-art base stations generate and transmit many kinds of messages, so the creation and transmission of messages concerning the information in the database can be realized by means 851 , 852 according to the prior art.
  • the cells are divided according to their size and characteristics into different-sized cells, and the transmission rate can be used as an example of the service level.
  • Picocells have the highest transmission rate and macrocells the lowest.
  • the cells may partly or totally overlap and there may be different mobile stations, so that all mobile stations may not be able to use the service levels of all base stations.
  • the invention can be applied to transmit various data about different services supported by neighbour base stations in the form of signalling messages of the current service.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Hybrid Cells (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
US09/396,853 1998-09-16 1999-09-15 Method and arrangement for changing cells Expired - Lifetime US6546251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982000 1998-09-16
FI982000A FI982000A (fi) 1998-09-16 1998-09-16 Parannettu menetelmä ja järjestely solun vaihtamiseksi

Publications (1)

Publication Number Publication Date
US6546251B1 true US6546251B1 (en) 2003-04-08

Family

ID=8552503

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/396,853 Expired - Lifetime US6546251B1 (en) 1998-09-16 1999-09-15 Method and arrangement for changing cells

Country Status (13)

Country Link
US (1) US6546251B1 (de)
EP (1) EP1114565B1 (de)
JP (1) JP2002525938A (de)
KR (1) KR100470597B1 (de)
CN (1) CN1139291C (de)
AT (1) ATE255318T1 (de)
AU (1) AU5864199A (de)
BR (1) BR9913422B1 (de)
DE (1) DE69913177T2 (de)
ES (1) ES2212628T3 (de)
FI (1) FI982000A (de)
HK (1) HK1038135A1 (de)
WO (1) WO2000016581A1 (de)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020037721A1 (en) * 2000-09-26 2002-03-28 Zte Corporation Method for detecting and controlling a standby mobile phone
US20020141357A1 (en) * 2001-02-01 2002-10-03 Samsung Electronics Co., Ltd. Method for providing packet call service in radio telecommunication system
US20020193139A1 (en) * 2001-03-30 2002-12-19 Gunnar Mildh Network/cell/interface selection in mixed networks
US20020191591A1 (en) * 2001-05-28 2002-12-19 Jukka Kivijarvi Transmission of connection setup parameters in packet data network
US20030129971A1 (en) * 2002-01-09 2003-07-10 Venkat Gopikanth Method and apparatus for wireless network selection
US20040136340A1 (en) * 2002-11-28 2004-07-15 Javier Sanchez Method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network
US6765891B2 (en) * 2002-04-03 2004-07-20 Nokia Corporation Method and apparatus providing for the immediate start of 3G measurements in dedicated mode on a cell with a packet broadcast control channel
US6771960B1 (en) * 2000-11-06 2004-08-03 Motorola, Inc. Method for a cellular radiotelephone to scan for service from adjacent cells
US20040162074A1 (en) * 2003-02-13 2004-08-19 Rex Huan-Yueh Chen Penalty of cell reselection for a wireless device
US20040176093A1 (en) * 2002-08-09 2004-09-09 Tushar Raval Method and apparatus for detecting a cell reselection
US6792284B1 (en) * 1999-04-30 2004-09-14 Nokia Mobile Phones Ltd. Method and arrangement for managing cell reselection in a terminal for a cellular system
US20040192313A1 (en) * 2003-03-25 2004-09-30 Motorola, Inc. Method for cell selection and reselection by a cellular mobile station in idle mode
WO2004095792A1 (en) * 2003-04-23 2004-11-04 Telecom Italia S.P.A. Radiotelephony network with multi-carrier packet data transmission
WO2005015783A1 (en) * 2003-08-07 2005-02-17 Samsung Electronics Co., Ltd. Method for cell reselection for reception of packet data
US20050047369A1 (en) * 2003-08-25 2005-03-03 Pecen Mark E. Method and apparatus for mobility impact mitigation in a packet data communication system
US20050169289A1 (en) * 2002-01-10 2005-08-04 Guillaume Sebire Method for broadcasting of a possibility to use 3g mobile communication network
US20050186984A1 (en) * 1998-10-16 2005-08-25 Antero Lundell Cell re-selection utilizing system information length
US20060023664A1 (en) * 2004-07-27 2006-02-02 Kyeong-In Jeong Method and apparatus for selecting frequency layer for connected mode UE in an MBMS mobile communication system
WO2006032215A1 (fr) * 2004-09-24 2006-03-30 Huawei Technologies Co., Ltd. Procede pour commander un terminal utilisateur selectionnant une cellule dans un systeme de radiocommunications
US20070070949A1 (en) * 2005-09-29 2007-03-29 Woonhee Hwang Method, device, system and software product for providing system information to enable packet switched handover
US20070173244A1 (en) * 2003-05-19 2007-07-26 Huawei Technologies Co., Ltd. A Method For Establishing A Service Connection
US20070197240A1 (en) * 2006-02-01 2007-08-23 Samsung Electronics Co., Ltd. Apparatus and method for controlling packet service in mobile communication terminal
US20080025240A1 (en) * 2006-06-09 2008-01-31 Lorenzo Casaccia Cell specific retransmission of single frequency network mbms data
US20080039082A1 (en) * 2006-08-11 2008-02-14 Samsung Electronics Co., Ltd. Apparatus and method for selecting a cell in a mobile communication terminal
WO2008057359A1 (en) * 2006-11-01 2008-05-15 Interdigital Technology Corporation Lte reselectable-only cells and cell info list for handover
EP1936903A1 (de) 2003-04-23 2008-06-25 Telecom Italia S.p.A. Funktelefon-Netzwerk mit Paketdaten-Übertragung
CN100466815C (zh) * 2006-03-14 2009-03-04 华为技术有限公司 下发gsm邻区频点信息及构建gsm邻区列表的方法
US20090238117A1 (en) * 2008-03-24 2009-09-24 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US20100278161A1 (en) * 2007-02-23 2010-11-04 Nokia Corporation Self optimization of forbidden neighbor cell list
US20110105120A1 (en) * 2009-11-04 2011-05-05 Ayman Ahmed Abdel-Samad Methods and apparatus to monitor a channel to determine neighbor cell information
US20110105158A1 (en) * 2009-11-04 2011-05-05 Dinesh Kumar Arora Methods and apparatus to avoid transmission of redundant neighbor cell information to mobile stations
US8463266B2 (en) 2006-06-29 2013-06-11 Fujitsu Limited Cell selection method, mobile station device and mobile communication system in hierarchical cell structure
US9265028B2 (en) 2006-06-09 2016-02-16 Qualcomm Incorporated Multicast/broadcast reporting for wireless networks
US20160277979A1 (en) * 2012-12-05 2016-09-22 Telefonaktiebolaget L M Ericsson (Publ) Determining the need for a routing area update for packet switched handover in multi-operator core network
US12041495B2 (en) * 2021-09-16 2024-07-16 Qualcomm Incorporated Techniques for cell selection and service continuity for conditional handover

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI109071B (fi) * 2000-01-17 2002-05-15 Nokia Corp Signalointimenetelmä
US20010036827A1 (en) * 2000-03-28 2001-11-01 Telefonaktiebolaget L M Ericsson (Pub1) Procedure for down loading cell information to mobiles in idle mode
US6879573B1 (en) * 2000-09-15 2005-04-12 Lucent Technologies Inc. Channel sharing by diverse multiframes in a wireless communications network
KR100430597B1 (ko) * 2000-09-29 2004-05-10 가부시키가이샤 엔.티.티.도코모 셀 제어 방법 및 셀 시스템
JP3946059B2 (ja) * 2002-03-06 2007-07-18 株式会社エヌ・ティ・ティ・ドコモ 移動局、通信システム及び通信方法
KR100451192B1 (ko) 2002-05-30 2004-10-02 엘지전자 주식회사 무선통신 네트워크에서의 셀 재선택 방법
KR100950663B1 (ko) * 2002-12-26 2010-04-02 삼성전자주식회사 다중 무선 액세스 기술체계 이동단말에서 무선 액세스기술체계간 셀 재선택방법
CN1512789A (zh) * 2002-12-27 2004-07-14 �ʼҷ����ֵ��ӹɷ����޹�˾ 多标准无线通信系统中的无线资源管理方法
KR100651430B1 (ko) 2003-11-07 2006-11-28 삼성전자주식회사 통신 시스템에서 핸드오버를 수행하는 시스템 및 방법
CN100391299C (zh) * 2004-03-19 2008-05-28 华为技术有限公司 一种建立业务连接的方法
KR101048256B1 (ko) 2004-03-31 2011-07-08 엘지전자 주식회사 이동통신 시스템의 중요도에 따른 데이터 전송방법
KR101069451B1 (ko) 2004-04-14 2011-09-30 엘지전자 주식회사 이동통신 시스템의 인접 셀 서비스 수신 방법
JP4750373B2 (ja) * 2004-04-28 2011-08-17 株式会社エヌ・ティ・ティ・ドコモ 無線制御装置、移動通信システムおよび通信制御方法
KR100933143B1 (ko) * 2004-07-27 2009-12-21 삼성전자주식회사 멀티미디어 방송/멀티캐스트 서비스를 위한 이동통신 시스템에서 커넥티드 모드 단말기를 위한 주파수 선택/선택제어 방법 및 장치
CN100337509C (zh) * 2004-11-08 2007-09-12 华为技术有限公司 集群移动台驻留集群叠加网时小区重选的方法
CN100415040C (zh) * 2004-11-16 2008-08-27 华为技术有限公司 一种实现集群移动台优选集群叠加网小区的小区重选方法
WO2006126137A2 (en) * 2005-05-25 2006-11-30 Nxp B.V. Cell selection device for multi-mode wireless communication equipment
JP5312724B2 (ja) * 2005-05-27 2013-10-09 京セラ株式会社 無線通信システム、無線通信装置、無線基地局装置及びハンドオフ制御方法
CN100421524C (zh) * 2005-12-06 2008-09-24 华为技术有限公司 一种对网络性能进行优化的方法
KR101208537B1 (ko) * 2006-08-23 2012-12-05 엘지전자 주식회사 이동국의 셀 재선택 기준 파라미터 산출을 위한 디폴트값설정 방법
KR101330980B1 (ko) 2006-10-11 2013-11-18 엘지전자 주식회사 이동통신단말기의 셀 재선택 방법 및 이를 수행하기 위한이동통신단말기
KR101482255B1 (ko) * 2007-06-18 2015-01-13 삼성전자주식회사 이동통신 시스템에서 인접 셀들에 대한 메저먼트 방법 및장치
CN102474776B (zh) * 2007-08-13 2015-07-22 爱立信电话股份有限公司 蜂窝系统中改进的相邻信息更新
GB2454649B (en) * 2007-10-26 2012-05-30 Ubiquisys Ltd Cellular basestation
US8107955B2 (en) 2008-07-18 2012-01-31 Research In Motion Limited Apparatus and method for performing network scanning using black-list network information
US8249591B2 (en) 2009-01-21 2012-08-21 Research In Motion Limited Method and device for obtaining candidate information
EP2211576B1 (de) * 2009-01-21 2012-03-14 Research In Motion Limited Verfahren und Vorrichtung zum Erhalten von Kandidateninformationen
US8311576B2 (en) 2009-01-30 2012-11-13 Research In Motion Limited Method and apparatus for network scanning based on neighbor information
US9591459B2 (en) * 2011-04-08 2017-03-07 Qualcomm Incorporated Signaling whether a network has broadcast system information

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257257A (en) 1991-04-05 1993-10-26 Nokia Mobiltelefoner Ab Method of controlling the operation of a packet switched CDMA communication network for controlling the operation of transmitters and receivers
WO1995002309A1 (en) 1993-07-09 1995-01-19 Telefonaktiebolaget Lm Ericsson Best server selection in layered cellular radio systems
WO1997015168A2 (en) 1995-10-18 1997-04-24 Telefonaktiebolaget Lm Ericsson A method for system registration and cell reselection
US5640395A (en) 1994-05-03 1997-06-17 Nokia Mobile Phones Ltd. System for transmitting packet data in digital cellular time division multiple access (TDMA) air interface
US5729534A (en) 1995-01-09 1998-03-17 Nokia Mobile Phones Limited Dynamic allocation of radio capacity in a TDMA system
US5729541A (en) 1994-06-08 1998-03-17 Nokia Mobile Phones Ltd. System for transmitting packet data in radio telephone TDMA systems
US5790534A (en) 1996-09-20 1998-08-04 Nokia Mobile Phones Limited Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
WO1998036591A1 (en) 1997-02-18 1998-08-20 Telefonaktiebolaget Lm Ericsson (Publ) Emulating an advanced control algorithm in a mobile communications system
US5802465A (en) 1993-09-06 1998-09-01 Nokia Mobile Phones Ltd. Data transmission in a radio telephone network
US5946320A (en) 1995-10-23 1999-08-31 Nokia Mobile Phones Limited Method for transmitting packet data with hybrid FEC/ARG type II
US6094581A (en) * 1997-06-10 2000-07-25 Telefonaktiebolaget Lm Ericsson Tailored hierarchical cell structures in a communications system
US6295450B1 (en) * 1998-06-23 2001-09-25 Motorola, Inc. Method and apparatus for transferring communication within a communication system
US6308066B1 (en) * 1997-01-09 2001-10-23 Nokia Mobile Phones, Ltd. Method to determine neighbor cell data in a mobile cellular system and a mobile station

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611301C2 (de) * 1986-04-04 1997-09-25 Philips Patentverwaltung Mobilfunksystem mit Nachrichtenübertragungskanal und Organisationskanal
NL9301494A (nl) * 1993-08-31 1995-03-16 Nederland Ptt Stelsel voor mobiele communicatie, ingericht voor het selecteren van beschikbare communicatiedomeinen.
US5724665A (en) * 1993-11-24 1998-03-03 Lucent Technologies Inc. Wireless communication base station

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257257A (en) 1991-04-05 1993-10-26 Nokia Mobiltelefoner Ab Method of controlling the operation of a packet switched CDMA communication network for controlling the operation of transmitters and receivers
WO1995002309A1 (en) 1993-07-09 1995-01-19 Telefonaktiebolaget Lm Ericsson Best server selection in layered cellular radio systems
US5499386A (en) * 1993-07-09 1996-03-12 Telefonaktiebolaget L M Ericsson Best server selection in layered cellular radio system
US5802465A (en) 1993-09-06 1998-09-01 Nokia Mobile Phones Ltd. Data transmission in a radio telephone network
US5640395A (en) 1994-05-03 1997-06-17 Nokia Mobile Phones Ltd. System for transmitting packet data in digital cellular time division multiple access (TDMA) air interface
US5729541A (en) 1994-06-08 1998-03-17 Nokia Mobile Phones Ltd. System for transmitting packet data in radio telephone TDMA systems
US5729534A (en) 1995-01-09 1998-03-17 Nokia Mobile Phones Limited Dynamic allocation of radio capacity in a TDMA system
WO1997015168A2 (en) 1995-10-18 1997-04-24 Telefonaktiebolaget Lm Ericsson A method for system registration and cell reselection
US5768267A (en) * 1995-10-18 1998-06-16 Telefonaktiebolaget Lm Ericsson Method for system registration and cell reselection
US5946320A (en) 1995-10-23 1999-08-31 Nokia Mobile Phones Limited Method for transmitting packet data with hybrid FEC/ARG type II
US5790534A (en) 1996-09-20 1998-08-04 Nokia Mobile Phones Limited Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
US6308066B1 (en) * 1997-01-09 2001-10-23 Nokia Mobile Phones, Ltd. Method to determine neighbor cell data in a mobile cellular system and a mobile station
WO1998036591A1 (en) 1997-02-18 1998-08-20 Telefonaktiebolaget Lm Ericsson (Publ) Emulating an advanced control algorithm in a mobile communications system
US6094581A (en) * 1997-06-10 2000-07-25 Telefonaktiebolaget Lm Ericsson Tailored hierarchical cell structures in a communications system
US6295450B1 (en) * 1998-06-23 2001-09-25 Motorola, Inc. Method and apparatus for transferring communication within a communication system

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8335509B2 (en) * 1998-10-16 2012-12-18 Eastman Kodak Company Cell re-selection utilizing system information length
US7058406B1 (en) * 1998-10-16 2006-06-06 Nokia Mobile Phones Limited Cell re-selection utilizing system information length
US20050186984A1 (en) * 1998-10-16 2005-08-25 Antero Lundell Cell re-selection utilizing system information length
US7587204B2 (en) 1998-10-16 2009-09-08 Eastman Kodak Company Cell re-selection utilizing system information length
US20100009672A1 (en) * 1998-10-16 2010-01-14 Antero Lundell Cell re-selection utilizing system information length
US6792284B1 (en) * 1999-04-30 2004-09-14 Nokia Mobile Phones Ltd. Method and arrangement for managing cell reselection in a terminal for a cellular system
US20020037721A1 (en) * 2000-09-26 2002-03-28 Zte Corporation Method for detecting and controlling a standby mobile phone
US6735442B2 (en) * 2000-09-26 2004-05-11 Zte Corporation Method for detecting and controlling a standby mobile phone
US6771960B1 (en) * 2000-11-06 2004-08-03 Motorola, Inc. Method for a cellular radiotelephone to scan for service from adjacent cells
US20020141357A1 (en) * 2001-02-01 2002-10-03 Samsung Electronics Co., Ltd. Method for providing packet call service in radio telecommunication system
US20020193139A1 (en) * 2001-03-30 2002-12-19 Gunnar Mildh Network/cell/interface selection in mixed networks
US7142860B2 (en) * 2001-03-30 2006-11-28 Telefonaktiebolaget Lm Ericsson (Publ) Network/cell/interface selection in mixed networks
US20020191591A1 (en) * 2001-05-28 2002-12-19 Jukka Kivijarvi Transmission of connection setup parameters in packet data network
US6799038B2 (en) * 2002-01-09 2004-09-28 Motorola, Inc. Method and apparatus for wireless network selection
US20030129971A1 (en) * 2002-01-09 2003-07-10 Venkat Gopikanth Method and apparatus for wireless network selection
US20050169289A1 (en) * 2002-01-10 2005-08-04 Guillaume Sebire Method for broadcasting of a possibility to use 3g mobile communication network
US6765891B2 (en) * 2002-04-03 2004-07-20 Nokia Corporation Method and apparatus providing for the immediate start of 3G measurements in dedicated mode on a cell with a packet broadcast control channel
US20040176093A1 (en) * 2002-08-09 2004-09-09 Tushar Raval Method and apparatus for detecting a cell reselection
US20040136340A1 (en) * 2002-11-28 2004-07-15 Javier Sanchez Method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network
US7668547B2 (en) 2002-11-28 2010-02-23 Nec Corporation Method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network
US20080299975A1 (en) * 2002-11-28 2008-12-04 Nec Corporation Method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network
US7430417B2 (en) * 2002-11-28 2008-09-30 Nec Corporation Method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network
US7127253B2 (en) * 2003-02-13 2006-10-24 Asustek Computer Inc. Penalty of cell reselection for a wireless device
US20040162074A1 (en) * 2003-02-13 2004-08-19 Rex Huan-Yueh Chen Penalty of cell reselection for a wireless device
US20040192313A1 (en) * 2003-03-25 2004-09-30 Motorola, Inc. Method for cell selection and reselection by a cellular mobile station in idle mode
WO2004095853A3 (en) * 2003-03-25 2005-06-02 Motorola Inc Method for cell selection and reselection by a cellular mobile station in idle mode
WO2004095853A2 (en) * 2003-03-25 2004-11-04 Motorola Inc. Method for cell selection and reselection by a cellular mobile station in idle mode
EP1936903A1 (de) 2003-04-23 2008-06-25 Telecom Italia S.p.A. Funktelefon-Netzwerk mit Paketdaten-Übertragung
US8743840B2 (en) 2003-04-23 2014-06-03 Telecom Italia, S.P.A. Radiotelephony network with multi-carrier packet data transmission
WO2004095792A1 (en) * 2003-04-23 2004-11-04 Telecom Italia S.P.A. Radiotelephony network with multi-carrier packet data transmission
US7835318B2 (en) 2003-04-23 2010-11-16 Telecom Italia S.P.A. Radiotelephony network with multi-carrier packet data transmission
US20070173244A1 (en) * 2003-05-19 2007-07-26 Huawei Technologies Co., Ltd. A Method For Establishing A Service Connection
WO2005015783A1 (en) * 2003-08-07 2005-02-17 Samsung Electronics Co., Ltd. Method for cell reselection for reception of packet data
US20050041608A1 (en) * 2003-08-07 2005-02-24 Samsung Electronics Co., Ltd. Method for cell reselection for reception of packet data
US9832032B2 (en) 2003-08-07 2017-11-28 Samsung Electronics Co., Ltd Method for cell reselection for reception of packet data
AU2004302148B2 (en) * 2003-08-07 2008-03-06 Samsung Electronics Co., Ltd. Method for cell reselection for reception of packet data
US20050047369A1 (en) * 2003-08-25 2005-03-03 Pecen Mark E. Method and apparatus for mobility impact mitigation in a packet data communication system
US7948940B2 (en) 2004-07-27 2011-05-24 Samsung Electronics Co., Ltd. Method and apparatus for selecting frequency layer for connected mode UE in an MBMS mobile communication system
US20110222401A1 (en) * 2004-07-27 2011-09-15 Jeong Kyeong-In Method and Apparatus for Selecting Frequency Layer for Connected Mode UE in an MBMS Mobile Communication System
US8351391B2 (en) 2004-07-27 2013-01-08 Samsung Electronics Co., Ltd. Method and apparatus for selecting frequency layer for connected mode UE in an MBMS mobile communication system
US20060023664A1 (en) * 2004-07-27 2006-02-02 Kyeong-In Jeong Method and apparatus for selecting frequency layer for connected mode UE in an MBMS mobile communication system
WO2006032215A1 (fr) * 2004-09-24 2006-03-30 Huawei Technologies Co., Ltd. Procede pour commander un terminal utilisateur selectionnant une cellule dans un systeme de radiocommunications
US20070015530A1 (en) * 2004-09-24 2007-01-18 Huawei Technologies Co., Ltd. Method for controlling user equipment to select a cell in radio communication system
US20070070949A1 (en) * 2005-09-29 2007-03-29 Woonhee Hwang Method, device, system and software product for providing system information to enable packet switched handover
US10470087B2 (en) 2005-09-29 2019-11-05 Nokia Technologies Oy Method, device, system and software product for providing system information to enable packet switched handover
US9301228B2 (en) 2005-09-29 2016-03-29 Vringo, Inc. Method, device, system and software product for providing system information to enable packet switched handover
US20070197240A1 (en) * 2006-02-01 2007-08-23 Samsung Electronics Co., Ltd. Apparatus and method for controlling packet service in mobile communication terminal
US7813731B2 (en) * 2006-02-01 2010-10-12 Samsung Electronics Co., Ltd Apparatus and method for controlling packet service in mobile communication terminal
CN100466815C (zh) * 2006-03-14 2009-03-04 华为技术有限公司 下发gsm邻区频点信息及构建gsm邻区列表的方法
US9265028B2 (en) 2006-06-09 2016-02-16 Qualcomm Incorporated Multicast/broadcast reporting for wireless networks
US8477673B2 (en) 2006-06-09 2013-07-02 Qualcomm Incorporated Cell specific retransmission of single frequency network MBMS data
US20080025240A1 (en) * 2006-06-09 2008-01-31 Lorenzo Casaccia Cell specific retransmission of single frequency network mbms data
US8463266B2 (en) 2006-06-29 2013-06-11 Fujitsu Limited Cell selection method, mobile station device and mobile communication system in hierarchical cell structure
US20080039082A1 (en) * 2006-08-11 2008-02-14 Samsung Electronics Co., Ltd. Apparatus and method for selecting a cell in a mobile communication terminal
WO2008057359A1 (en) * 2006-11-01 2008-05-15 Interdigital Technology Corporation Lte reselectable-only cells and cell info list for handover
US20080130578A1 (en) * 2006-11-01 2008-06-05 Interdigital Technology Corporation Lte reselectable-only cells and cell info list for handover
US8289925B2 (en) * 2007-02-23 2012-10-16 Nokia Corporation Self optimization of forbidden neighbor cell list
US20100278161A1 (en) * 2007-02-23 2010-11-04 Nokia Corporation Self optimization of forbidden neighbor cell list
US9615303B2 (en) 2008-03-24 2017-04-04 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US8310946B2 (en) * 2008-03-24 2012-11-13 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US9973994B2 (en) 2008-03-24 2018-05-15 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US9161298B2 (en) 2008-03-24 2015-10-13 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US20090238117A1 (en) * 2008-03-24 2009-09-24 Interdigital Patent Holdings, Inc. Cell selection and reselection for closed subscriber group cells
US20110105158A1 (en) * 2009-11-04 2011-05-05 Dinesh Kumar Arora Methods and apparatus to avoid transmission of redundant neighbor cell information to mobile stations
US20110105120A1 (en) * 2009-11-04 2011-05-05 Ayman Ahmed Abdel-Samad Methods and apparatus to monitor a channel to determine neighbor cell information
US8792890B2 (en) * 2009-11-04 2014-07-29 Blackberry Limited Methods and apparatus to monitor a channel to determine neighbor cell information
US8577371B2 (en) 2009-11-04 2013-11-05 Blackberry Limited Methods and apparatus to avoid transmission of redundant neighbor cell information to mobile stations
US20160277979A1 (en) * 2012-12-05 2016-09-22 Telefonaktiebolaget L M Ericsson (Publ) Determining the need for a routing area update for packet switched handover in multi-operator core network
US10568006B2 (en) * 2012-12-05 2020-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Determining the need for a routing area update for packet switched handover in multi-operator core network
US12041495B2 (en) * 2021-09-16 2024-07-16 Qualcomm Incorporated Techniques for cell selection and service continuity for conditional handover

Also Published As

Publication number Publication date
CN1139291C (zh) 2004-02-18
KR20010086382A (ko) 2001-09-10
WO2000016581A1 (en) 2000-03-23
DE69913177D1 (de) 2004-01-08
AU5864199A (en) 2000-04-03
JP2002525938A (ja) 2002-08-13
KR100470597B1 (ko) 2005-02-07
BR9913422B1 (pt) 2013-05-14
HK1038135A1 (en) 2002-03-01
EP1114565A1 (de) 2001-07-11
ES2212628T3 (es) 2004-07-16
CN1318267A (zh) 2001-10-17
BR9913422A (pt) 2001-05-22
ATE255318T1 (de) 2003-12-15
EP1114565B1 (de) 2003-11-26
FI982000A0 (fi) 1998-09-16
DE69913177T2 (de) 2004-08-12
FI982000A (fi) 2000-03-17

Similar Documents

Publication Publication Date Title
US6546251B1 (en) Method and arrangement for changing cells
KR100733683B1 (ko) 셀룰러 통신망에서의 시스템 정보 브로드캐스팅 방법 및장치
CN101473683B (zh) 累积相邻小区列表
US6223037B1 (en) Cell selection during loss of service in a telecommunications system
FI107690B (fi) Parannettu menetelmä ja järjestely solun valinnan hallitsemiseksi ja solukkojärjestelmän päätelaite
US6259915B1 (en) Multiple hyperband mobile and base stations
CN100421499C (zh) 移动通信系统中的无线电资源控制方法、无线电通信系统以及网络单元
CA2163937C (en) Method for channel scanning
EP2214426B1 (de) Zellenauswahlsystem, zellenauswahlverfahren und tragbares endgerät
US7167707B1 (en) Systems and methods for GSM selection
US20070248053A1 (en) Method and arrangement for controlling cell change and a terminal of a cellular system
KR20010013397A (ko) 핸드 오버 및 셀 재선택을 위한 방법, 기지국, 이동국 및셀룰러 무선시스템
EP1802158B1 (de) Verfahren für die Behandlung der periodischen PLMN Netzwerksuche im RRC Connected Modus in einem UMTS System
US20030050063A1 (en) Method for an intersystem connection handover
EP1730983A1 (de) Verfahren und system zur auswahl eines öffentlichen landgestützten mobilfunknetzes zur gemeinsamen netznutzung
US20060160541A1 (en) Method of GSM cell reselection
EP0985281B1 (de) Verfahren zur Leistungsverbrauchverminderung in einem digitalen Mobilfunksystem und einer mobilen Funkstation
EP1993317B1 (de) Einstellung der Zelle, der eine Mobilstation im "idle"-Modus zugeordnet ist
EP1292169A2 (de) Verfahren zur Handhabung von Weiterreichen im Freizustand zwischen verschiedene Dienste unterstützenden Basisstationen
EP0990316B1 (de) Verfahren zur leistungsverbrauchsverminderung in einem digitalen mobilfunksystem und eine mobile funkstation
AU751477B2 (en) Multiple hyperbrand radiocommunications system
JP2002345007A (ja) 無線通信機及びゾーン移行方法
CA2556505A1 (en) Multiple hyperband radiocommunications system

Legal Events

Date Code Title Description
AS Assignment

Owner name: NOKIA MOBILE PHONES LTD., FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DALSGAARD, LARS;LUNDELL, ANTERO;REEL/FRAME:010254/0717;SIGNING DATES FROM 19990819 TO 19990820

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: NOKIA CORPORATION, FINLAND

Free format text: MERGER;ASSIGNOR:NOKIA MOBILE PHONES LTD.;REEL/FRAME:019131/0153

Effective date: 20011001

AS Assignment

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CORPORATION (FORMERLY NOKIA MOBILE PHONES LTD.);REEL/FRAME:022288/0740

Effective date: 20081113

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: CITICORP NORTH AMERICA, INC., AS AGENT, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNORS:EASTMAN KODAK COMPANY;PAKON, INC.;REEL/FRAME:028201/0420

Effective date: 20120215

AS Assignment

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT, MINNESOTA

Free format text: PATENT SECURITY AGREEMENT;ASSIGNORS:EASTMAN KODAK COMPANY;PAKON, INC.;REEL/FRAME:030122/0235

Effective date: 20130322

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT,

Free format text: PATENT SECURITY AGREEMENT;ASSIGNORS:EASTMAN KODAK COMPANY;PAKON, INC.;REEL/FRAME:030122/0235

Effective date: 20130322

AS Assignment

Owner name: BANK OF AMERICA N.A., AS AGENT, MASSACHUSETTS

Free format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (ABL);ASSIGNORS:EASTMAN KODAK COMPANY;FAR EAST DEVELOPMENT LTD.;FPC INC.;AND OTHERS;REEL/FRAME:031162/0117

Effective date: 20130903

Owner name: BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT, NEW YORK

Free format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN);ASSIGNORS:EASTMAN KODAK COMPANY;FAR EAST DEVELOPMENT LTD.;FPC INC.;AND OTHERS;REEL/FRAME:031159/0001

Effective date: 20130903

Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE, DELAWARE

Free format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN);ASSIGNORS:EASTMAN KODAK COMPANY;FAR EAST DEVELOPMENT LTD.;FPC INC.;AND OTHERS;REEL/FRAME:031158/0001

Effective date: 20130903

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE OF SECURITY INTEREST IN PATENTS;ASSIGNORS:CITICORP NORTH AMERICA, INC., AS SENIOR DIP AGENT;WILMINGTON TRUST, NATIONAL ASSOCIATION, AS JUNIOR DIP AGENT;REEL/FRAME:031157/0451

Effective date: 20130903

Owner name: BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT, NEW YO

Free format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN);ASSIGNORS:EASTMAN KODAK COMPANY;FAR EAST DEVELOPMENT LTD.;FPC INC.;AND OTHERS;REEL/FRAME:031159/0001

Effective date: 20130903

Owner name: PAKON, INC., NEW YORK

Free format text: RELEASE OF SECURITY INTEREST IN PATENTS;ASSIGNORS:CITICORP NORTH AMERICA, INC., AS SENIOR DIP AGENT;WILMINGTON TRUST, NATIONAL ASSOCIATION, AS JUNIOR DIP AGENT;REEL/FRAME:031157/0451

Effective date: 20130903

Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE, DELA

Free format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN);ASSIGNORS:EASTMAN KODAK COMPANY;FAR EAST DEVELOPMENT LTD.;FPC INC.;AND OTHERS;REEL/FRAME:031158/0001

Effective date: 20130903

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A.;REEL/FRAME:037426/0337

Effective date: 20160105

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:037426/0192

Effective date: 20160105

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:037426/0300

Effective date: 20160105

AS Assignment

Owner name: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., TAIW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EASTMAN KODAK COMPANY;REEL/FRAME:037782/0316

Effective date: 20151204

AS Assignment

Owner name: KODAK REALTY, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: QUALEX, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: FAR EAST DEVELOPMENT LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK AVIATION LEASING LLC, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: NPEC, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK PORTUGUESA LIMITED, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK IMAGING NETWORK, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: CREO MANUFACTURING AMERICA LLC, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: PAKON, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: LASER PACIFIC MEDIA CORPORATION, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK AMERICAS, LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: FPC, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK (NEAR EAST), INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

Owner name: KODAK PHILIPPINES, LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:050239/0001

Effective date: 20190617

AS Assignment

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK (NEAR EAST), INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: CREO MANUFACTURING AMERICA LLC, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK AVIATION LEASING LLC, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: QUALEX, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK REALTY, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: FAR EAST DEVELOPMENT LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: PAKON, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK IMAGING NETWORK, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: LASER PACIFIC MEDIA CORPORATION, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: NPEC, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: PFC, INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK AMERICAS, LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK PORTUGUESA LIMITED, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

Owner name: KODAK PHILIPPINES, LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:049901/0001

Effective date: 20190617

AS Assignment

Owner name: LASER PACIFIC MEDIA CORPORATION, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: KODAK (NEAR EAST) INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: FPC INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: FAR EAST DEVELOPMENT LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: NPEC INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: KODAK AMERICAS LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: EASTMAN KODAK COMPANY, NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: KODAK REALTY INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: QUALEX INC., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202

Owner name: KODAK PHILIPPINES LTD., NEW YORK

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC;REEL/FRAME:052773/0001

Effective date: 20170202